Watkins K. (1994) A Virtual Modelling Environment, Honours Thesis, Computer Science Department, Rhodes University. http://cs.ru.ac.za/vrsig/techdocs.html  Home/Search   Document Details and Download   Summary   Related Articles

....and to use it in VR applications. 1.3. The Need for Solid Models As stated earlier, solid models are widely used in CAD, 3 D graphics and VR applications, amongst others. The decrease in price of high end graphics hardware has caused an increase in graphics applications, specifically VR systems [Watkins 1994]. These applications need solid models. This has caused an increase in the number of tools for creating solid models. However, these tools generally have a non intuitive and non interactive interface. This is due to the fact that input devices are usually two dimensional, and this two dimensional ....

....the model. A solid representation is a means of encoding the shape of a solid object [Gain 1993] Solid representations can be divided into various categories. Extensive research has been done in this field in the Department of Computer Science at Rhodes University (including [Gain 1993] and [Watkins 1994]) This chapter is a brief overview of that work, with references to earlier solid modelling tools. 2.1. Boundary Representations In Boundary Representations (B reps) the object is modelled using only its topological surface information. This usually means using polygons (vertices, edges and ....

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Watkins K. (1994) A Virtual Modelling Environment, Honours Thesis, Computer Science Department, Rhodes University. http://cs.ru.ac.za/vrsig/techdocs.html

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